Oiling attachment for the axles of resilient wheels.



A. NELSONu OILING ATTACHMENT FOR THE AXLES 0F RESILIENT WHEELS.

APPLICATION FILED NOV. 12, 1912.

Patented Get. 21, 1913.

v A. NELSON. v OILING ATTACHMENT FOR THE AXLES 0P BESILIBNT WHEELS.

APPLICATION FILED NOV. 12, 1912.

Patented 001;. 21, 1913.

2 SHEETS-SHEET 2.

AL NELQON UNITED sTATEs PATENT orrIoE AL NELSON, OF RIPLEY, TENNESSEE.

OILING ATTACHMENT FOR THE AXLES OF- RESILIENT wHEEL's.

T 0 all whom it may concern Be it known that I, AL NELSON, a citizen of the United States, residing at Ripley, in the county of Lzuulerdale and State of Tennessee, have invented certain new and useful Improvements in Oiling Attachments for the Axles of Resilient \Vheels, of which the following is a specification. reference being had to the accompanying drawings. I

This invention comprehends certain new and useful improvements in lubricatin devices and relates particularly to an oil lamp or lubricating apparatus designed for use as an attachment to spring wheels to oil the spindles or axles thereof.

The invention has for its primary object a simple, durable and efficient construction of device of this character which may be easily applied to a spring wheel and which will embody a piston designed to be automatically actuated intermittently by the resilient action of the wheel so as to positively force oil into and through a passage or channel leading through the hub of .the wheel to the axle or spindle thereof.

\Vith these and other objects inview, the invention consists of certain novel features of construction, combination and arrangement of parts as I shall hereinafter fully describe and claim.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which Figure 1 is a side elevation of my improved wheel and lubricating apparatus, partly in section. Figs. 2 and3. are sectional views taken on the planes of'lines 2-2 and 3-3 respectively of Fig. 1. Fig. 4: is a sectional view through the valve casing carried by the oil pump. Fig. 5 is a detail view of the interior of the cap forming a portion of said valve casing. Figs. 6 and 7 are detail views of parts to be hereinafter described;

Referring in detail to the drawings by numerals, 1 designates an outer rim having the solid rubber tire 3 secured to its periphery.

1 designates an inner rim spaced from the outer rim by means of the hollow seg- Specification of Letters Patent Patented Oct 21, 1913, Application fild November 12, 1912. Serial No. 730,987. 1

A plurality of spokes 7 are secured to the and longitudinally extending threaded pro-- jections 12. Spiral springs 13- are secured at their inner ends to the projections 12* and at their outer ends to the rim 1 and spiral springs H are secured to the lateral projections 11 and the blocks 5. Side plates 16 are secured to the inwardly projecting ears 6 and form, in conjunction'with the rims a casing for the springs and blocks. It will be seen from the foregoing description that the springs 13 and 14 securely connect the outer ends of the spokes 7 to the spacing blocks 5 and the outer rim 1 and that" the walls of the slots 10 preventlateral movement of the inner rim relative to the hub, thereby greatly strengthening the wheel.

Upon one of the spokes 7 an oil receptacle 16 is secured by suitable fastening members ,17 and is connected by means of the pipe 18 to the pump cylinder 19. This cylinder is enlarged at its inner end as clearly shown in Fig. 4 and provided with the semispherical cap 20 which is threaded upon the inner end of the' cylinder and which is provided with the flanged opening 21. The hub 8 is formed with the transverse opening 22 which communicates with the interior thereof and to the outer end of which the cap member 20 is connected. The brace rods 23 which are connected at their ends to the spokes 7 support the pump cylinder 19. The enlarged inncr'end of the cylinder 19 and the semispherical cap 20 form a valve chamber in which is positioned a ball valve 24 which is adapted to normally close the end of the cylinder 19 when said cylinder is below the hub. The interior of the cap 20 is provided with the grooves 25 which communicate with the opening in the outer end of said cap whereby the ball Valve 24 cannot entirely-close the same. A piston 26, connected to the piston rod 27, works within the pump cylinder 19 and is for the purpose of drawing oil into said cylinder from the oil receptacle 16 and forcing it past the ball valve 24 into the channel 22 so as to lubricate the axle spindle. A wheel 28 is journaled on the. outer end of the piston rod 24- and rides upon the inner rim 4:. Thus it will be seen that the movement of the hub 8 in a downward direction will cause the piston to move inwardly. The expansive spiral spring 29 which encircles the piston rod 27 tends to normally hold said rod in its outermost position. Q

The oil container 16 is provided with a removable plug 30 formed with an orifice extending therethrough, as best illustrated in Fig. 6, the cylinder being filled with oil through the opening provided by the removal of the plug, or, if desired, the. container may be filled through the orifice of the plug withoutlremoving the latter; A flap valve 32 is seured within the-plug 30 so as to ermit air to enter the container 16 as the o l is drawn therefrom.

From the foregoing description taken in connection with the accompanying drawings, it is thought that the construction of my oiling device will beclearly understood.

Asthe wheel revolves, the spokes 7 work within the slots 10 and the springs 13 and 14 absorb the greater portion of-the shockincidental to rough roads. As the relative positions of the hub 8 and inner rim 4 are constantly changing, the piston 26 is continually actuated so as to draw oil into the pump cylinder 19 and then .force said oil through the channel 22 in the hub.

It is to be understoodthat while I have shown and described the preferred embodiment-of my invention, 1 do not wish to be limited to this exact-construction but may make such changes as shall occur from of a wheel and communicating with the interior of'the pump cylinder, and an outwardly spring pressed piston mounted in said pump cylinder and arranged for inward actuation b pressure produced thereon by a radial yiel ing of the wheel structure, said cylinder being provided I with a discharge passage, for the purpose specified.

2. The combination with a spring wheel, mcluding a hub, spokes and a rimhaving a radially and circumferentially yielding relation to the hub, of a pump cylinder carried by the wheel and adapted to supply oil to a portion thereof, a' piston mounted in said c linder, and a piston rod connected to sai piston and rejecting outwardly in a radial direction rom the cylinder, said piston rod being spring pressed outwardly and provided at its outer end with a roller mounted to ride upon the rim.

3.1The combination with a spring wheel having inner and outer rims and a hub relatively movable thereto, said hub being formed with a transverse passage communieating with the interior thereof, of an oil pumping apparatus comprising a pump cylinder secured between the wheel spokes and communicating at its inner end with said passage, a piston, a piston rod adapted to be engaged by said inner rim and forced inwardly, means for holding said piston in its outermost position, an oil container communicating -with said pump cylinder and means for checking the flow of oil through the cylinder in one direction.

4:. The combination with a spring wheel having a hub movable relative to the wheel rim, said hub being provided with a channel communicating with the axle spindle, of an oiling apparatus comprising a pump cylinder communicating at its inner end with said channel, a ball valve positio'ned Within said cylinder, a piston, a piston rod, a wheel journaled on the outer end of said rod for engagementwith the wheel rim, whereby the piston is forced inwardly, means for returning said piston to its outermost position, an oil container and a pipe connecting said container with the pump cylinder.

5. A pump cylinder enlarged at one end, a hemispherical cap secured upon said enlarged end and forming therewith a valve chamber, said ca'pbeing formed in its outer end with an opening and having grooves upon its interior surface communicating with said opening, a ball valve positioned within said chamber, a piston, means for actuating the same, and means for feeding a fluid into said pump cylinder. v

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

AL NELSON.

Witnesses:

E. T. ANTHONY, WILSON 'BLACKWELL. 

